habbdt

Python for System Admins / Operators

Installing Python

Most Unix/Linux systems come with python pre-installed:

$ python -V

habbdt

#!/usr/bin/env python

import sys, paramiko

if len(sys.argv) < 5:
    print "args missing"
    sys.exit(1)

hostname = sys.argv[1]
password = sys.argv[2]

habbdt

Typing vagrant from the command line will display a list of all available commands.

Be sure that you are in the same directory as the Vagrantfile when running these commands!

Common Vagrant Commands

• vagrant up -- starts vagrant environment (also provisions only on the FIRST vagrant up)
• vagrant status -- outputs status of the vagrant machine
• vagrant halt -- stops the vagrant machine
• vagrant reload -- restarts vagrant machine, loads new Vagrantfile configuration
• vagrant provision -- forces reprovisioning of the vagrant machine

habbdt

Installation and Setting Parameters:
yum install git                                             # Install git
git config --global user.name "<user_name>"                 # Git global conf 
git config --global user.email "<email>"                    # Git global conf
git config --global system.name "server1.example.com"       # Git global conf 
git config --global core.editor vim                         # Set editor to be vim
git config --global core.page 'more'                        # Git global conf
git config --global core.excludefile ~/.gitignore_global    # Ignore files - add lists of the files to be excluded
git config --list

habbdt

oc <verb> <resoure_type> [<name>]

User Login and Authetication
============================
oc login -u system:admin https://ose-master01.example.com:8443
oc whoami
oc whoami -t            # prints token which is used to authenticate any  api requests from this session to master.
oc logout
 
oc new-project build-project

habbdt

+-------------------+
| Splunk Operations |
+-------------------+
# /opt/splunkforwarder/bin/splunk add forward-server <server_name>:<index_port>
# /opt/splunkforwarder/bin/splunk list forward-server
# /opt/splunkforwarder/bin/splunk add monitor /var/log/messages
# /opt/splunkforwarder/bin/splunk start

+------------------------------------+
| Splunk Processing Language Example |

habbdt

Run OWASP juice shop app on the minikube
========================================
Depending on your platform use the appropriate method to install minikube on your system. For macOS it can be installed using the brew.

# brew install minikube
# minikube start --driver=vmwarefusion
# docker pull bkimminich/juice-shop
# kubectl create deployment juice-shop --image=bkimminich/juice-shop
# kubectl expose deployment juice-shop --port=3000 --type=LoadBalancer
# minikube service juice-shop

habbdt

#!/usr/bin/env bash
#              bash 4.1.5(1)     Linux Ubuntu 10.04              Date : 2011-08-25
#
# _______________|  httpstatus : get HTTP status code
#
#           Usage:  httpstatus URL [timeout] [--code or --status] [see 4.]
#                                                       ^message with code (default) 
#                                             ^code (numeric only)
#                                  ^in secs (default: 3)
#                              ^URL without "http://" prefix works fine.